191 lines
4.3 KiB
Markdown
191 lines
4.3 KiB
Markdown
# Introduction
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`MSG` is a command introduced with [MSNP2](../versions/msnp2.md).
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It is a Notification and Switchboard Server command, WITH a request and WITH a response payload.
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Used to transfer MIME-headered data to other parties, whenever that be you or other users.
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# Client/Request
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*This command can only be sent in a Switchboard session.*
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```
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MSG TrID [ U | N | A | D ] length
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payload
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```
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## Acknowledgement Types
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* U: Unacknowledged, no response is sent.
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* A: Acknowledged, a [ACK](ack.md) response is sent if the message is sent successfully.
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* N: Negative-Acknowledged, a [NAK](nak.md) response is sent if the messaged failed to send successfully.
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* D: Data, a version of Acknowledged that also has a response of error 282 if the message was poorly formatted.
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Acknowledgement Type `D` is defined since [MSNP9](../versions/msnp9.md).
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Where `length` is the size (in bytes) of the `payload`.
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Where `payload` is the body of the message,
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usually containing a `MIME-Version` header and a `Content-Type`.
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# Server/Response
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```
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MSG user-handle friendly-name length
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payload
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```
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Where `user-handle` is either the senders's handle,
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or `Hotmail`, if sent from the Notification Server itself.
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Where `friendly-name` is either the URL-encoded Friendly Name of the sender,
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or `Hotmail`, if sent from the Notification Server itself.
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Where `length` is the size (in bytes) of the `payload`.
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Where `payload` is the body of the message,
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usually containing a `MIME-Version` header and a `Content-Type`.
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# Examples
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## Client initated
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### Unacknowledged message
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```
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C: MSG 1 U 75
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MIME-Version: 1.0
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Content-Type: text/plain;charset=UTF-8
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unacknowledged
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```
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### Acknowledged message
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```
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C: MSG A 2 73
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MIME-Version: 1.0
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Content-Type: text/plain;charset=UTF-8
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acknowledged
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S: ACK 2
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```
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### Negative-Acknowledged message
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```
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C: MSG 3 2 85
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MIME-Version: 1.0
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Content-Type: text/plain;charset=UTF-8
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negatively acknowledged?
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S: NAK 3
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```
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### Data message
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*Since [MSNP9](../versions/msnp9.md).*
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```
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C: MSG 4 D 73
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MIME-Version: 1.0
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Content-Type: application/octet-stream
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data message
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S: ACK 4
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```
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### Poorly formatted data message
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*Since [MSNP9](../versions/msnp9.md).*
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```
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C: MSG 5 D 74
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MIME-Version: 1.0
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Content-Type: text/plain;charset=UTF-8
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data message?
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S: 282 5
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```
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### Invalid context (Notification Server)
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*Inherited from being an unimplemented command.*
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```
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C: MSG 6 U 0
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```
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Server disconnects client.
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## Server initated
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### Notification Server
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#### Initial profile
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*NOTE: This profile is from [MSNP2](../versions/msnp2.md), later versions have longer initial profiles.*
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```
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S: MSG Hotmail Hotmail 95
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MIME-Version: 1.0
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Content-Type: text/x-msmsgsprofile; charset=UTF-8
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LoginTime: 1726321960
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```
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#### Initial e-mail configuration
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*NOTE: This message is from [MSNP3](../versions/msnp3.md), the [MSNP2](../versions/msnp2.md) version of this is unknown.*
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```
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S: MSG Hotmail Hotmail 221
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MIME-Version: 1.0
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Content-Type: text/x-msmsgsinitialemailnotification; charset=UTF-8
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Inbox-Unread: 1
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Folders-Unread: 0
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Inbox-URL: /cgi-bin/HoTMaiL
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Folders-URL: /cgi-bin/folders
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Post-URL: http://www.hotmail.com
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```
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#### New e-mail
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```
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S: MSG Hotmail Hotmail 342
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MIME-Version: 1.0
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Content-Type: text/x-msmsgsemailnotification; charset=UTF-8
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From: Example User
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Message-URL: /cgi-bin/getmsg?msg=MSG1728932553.00&start=1&len=12&curmbox=ACTIVE
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Post-URL: https://loginnet.passport.com/ppsecure/md5auth.srf?lc=1033
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Subject: Just saying hello.
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Dest-Folder: ACTIVE
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From-Addr: example@hotmail.com
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id: 2
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```
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Since [MSNP3](../versions/msnp3.md), the `id` header was added for Passport automatic authentication support.
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#### Mailbox activity
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```
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S: MSG Hotmail Hotmail 146
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MIME-Version: 1.0
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Content-Type: text/x-msmsgsactivemailnotification; charset=UTF-8
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Src-Folder: ACTIVE
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Dest-Folder: ACTIVE
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Message-Delta: 1
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```
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#### System message
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*NOTE: There may be other types of system messages, `Type` 1 is for a server shutdown message,
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`Arg1` in this case would be the minutes before the server is set to shutdown.*
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```
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S: MSG Hotmail Hotmail 88
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MIME-Version: 1.0
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Content-Type: application/x-msmsgssystemmessage
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Type: 1
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Arg1: 5
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```
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### Switchboard Server
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```
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S: MSG example@hotmail.com example%20user 73
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MIME-Version: 1.0
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Content-Type: text/plain;charset=UTF-8
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acknowledged
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```
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# Known changes
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* [MSNP3](../versions/msnp3.md): Switchboard: Added support for the `X-MMS-IM-Format` header.
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* [MSNP9](../versions/msnp9.md): Switchboard: Added acknoledgement type D.
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